* master: (38 commits)
python readme update: web_log
python readme update: smartd_log
python readme update: nginx_log removed, postgres added
allow the installer to check configs signatures when the BASH is older than v4
disable /var/lib/docker/* by default
disable by default monitoring /snap/*; disable also ram* and loop* block devices
fix gauge gradient colors; fixes #1136
UrlService: custom_url support for _get_data and minor fixes
elasticsearch_plugin: "python-requests" requirement removed
prevent cpufreq messages flood; fixes #1933
gitignore freeipmi.plugin
allow custom defined information on the dashboard; fixes #1936
database size for mirrored hosts is now aligned to page size
add backwards compatibility for http listen backlog setting
make sure disconnected_time is updated before decrementing senders
automatic naming for libvirtd virtual machines; fixes #1045
prevents hosts from being removed during initialization
added compile option NETDATA_VERIFY_LOCKS to enable the locks
added compile option NETDATA_VERIFY_LOCKS to enable the locks
print the lock pointer in debug mode
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